unordered_multimap( InputIt first, InputIt last, size_type bucket_count = unordered_map_default_bucket_count, const Hash& hash = Hash(), const KeyEqual& equal = KeyEqual(), const Allocator& alloc = Allocator()) : _Base(first, last, bucket_count, hash, equal, alloc) {}
UnorderedMapPrototype(const KeyEqual& k = KeyEqual(), const Hash& h = Hash()) : Equal(k), Hasher(h) { }
explicit unordered_map( size_type bucket_count = unordered_map_default_bucket_count, const Hash& hash = Hash(), const KeyEqual& equal = KeyEqual(), const Allocator& alloc = Allocator()) : _Base(bucket_count, hash, equal, alloc) {}